Eternal Vigilance?

Has anyone ever heard of an Imperial ship called the Eternal Vigilance? I was reading the mutie background in Digganob, and their ship was originally called "Eter Vigila", from what the muties could tell. It doesn't take many braincells to work out that Eternal Vigilance was the original name, and I'm sure I've heard mention of it somewhere in the fluff before.

"It is the common fate of the indolent to see their rights become a prey to the active. The condition upon which God hath given liberty to man is eternal vigilance; which condition if he break, servitude is at once the consequence of his crime and the punishment of his guilt." -- John Philpot Curran

Sorry just like that quote.

Wasn't the Eternal Vigilance one of Solar Marchurius' fleet? My friends has all his old 2nd and 3rd edition IG codexes so ill look in those for you next time i get my hands on them.